##// END OF EJS Templates
templater: parse \"...\" as string for 2.9.2-3.4 compatibility (issue4733)...
templater: parse \"...\" as string for 2.9.2-3.4 compatibility (issue4733) As of Mercurial 3.4, there were several syntax rules to process nested template strings. Unfortunately, they were inconsistent and conflicted each other. a. buildmap() rule - template string is _parsed_ as string, and parsed as template - <\"> is not allowed in nested template: {xs % "{f(\"{x}\")}"} -> parse error - template escaping <\{> is handled consistently: {xs % "\{x}"} -> escaped b. _evalifliteral() rule - template string is _interpreted_ as string, and parsed as template in crafted environment to avoid double processing of escape sequences - <\"> is allowed in nested template: {if(x, "{f(\"{x}\")}")} - <\{> and escape sequences in string literal in nested template are not handled well c. pad() rule - template string is first interpreted as string, and parsed as template, which means escape sequences are processed twice - <\"> is allowed in nested template: {pad("{xs % \"{x}\"}', 10)} Because of the issue of template escaping, issue4714, 7298da81f5a9 (in stable) unified the rule (b) to (a). Then, 576d6c74784b (in default) unified the rule (c) to (b) = (a). But they disabled the following syntax that was somewhat considered valid. {if(rev, "{if(rev, \"{rev}\")}")} {pad("{files % \"{file}\"}", 10)} So, this patch introduces \"...\" literal to work around the escaped-quoted nested template strings. Because this parsing rule exists only for the backward compatibility, it is designed to copy the behavior of old _evalifliteral() as possible. Future patches will introduce a better parsing rule similar to a command substitution of POSIX shells or a string interpolation of Ruby, where extra escapes won't be necessary at all. {pad("{files % "{file}"}", 10)} ~~~~~~~~~~~~~~~~~~ parsed as a template, not as a string Because <\> character wasn't allowed in a template fragment, this patch won't introduce more breakages. But the syntax of nested templates are interpreted differently by people, there might be unknown issues. So if we want, we could instead remove db7463aa080f, 890845af1ac2 and 7298da81f5a9 from the stable branch as the bug fixed by these patches existed for longer periods. 554d6fcc3c8, "strip single backslash before quotation mark in quoted template", should be superseded by this patch. I'll remove it later.

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uisetup.py
168 lines | 7.8 KiB | text/x-python | PythonLexer
# Copyright 2009-2010 Gregory P. Ward
# Copyright 2009-2010 Intelerad Medical Systems Incorporated
# Copyright 2010-2011 Fog Creek Software
# Copyright 2010-2011 Unity Technologies
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''setup for largefiles extension: uisetup'''
from mercurial import archival, cmdutil, commands, extensions, filemerge, hg, \
httppeer, merge, scmutil, sshpeer, wireproto, revset, subrepo, copies
from mercurial.i18n import _
from mercurial.hgweb import hgweb_mod, webcommands
import overrides
import proto
def uisetup(ui):
# Disable auto-status for some commands which assume that all
# files in the result are under Mercurial's control
entry = extensions.wrapcommand(commands.table, 'add',
overrides.overrideadd)
addopt = [('', 'large', None, _('add as largefile')),
('', 'normal', None, _('add as normal file')),
('', 'lfsize', '', _('add all files above this size '
'(in megabytes) as largefiles '
'(default: 10)'))]
entry[1].extend(addopt)
# The scmutil function is called both by the (trivial) addremove command,
# and in the process of handling commit -A (issue3542)
entry = extensions.wrapfunction(scmutil, 'addremove',
overrides.scmutiladdremove)
extensions.wrapfunction(cmdutil, 'add', overrides.cmdutiladd)
extensions.wrapfunction(cmdutil, 'remove', overrides.cmdutilremove)
extensions.wrapfunction(cmdutil, 'forget', overrides.cmdutilforget)
extensions.wrapfunction(copies, 'pathcopies', overrides.copiespathcopies)
# Subrepos call status function
entry = extensions.wrapcommand(commands.table, 'status',
overrides.overridestatus)
entry = extensions.wrapfunction(subrepo.hgsubrepo, 'status',
overrides.overridestatusfn)
entry = extensions.wrapcommand(commands.table, 'log',
overrides.overridelog)
entry = extensions.wrapcommand(commands.table, 'rollback',
overrides.overriderollback)
entry = extensions.wrapcommand(commands.table, 'verify',
overrides.overrideverify)
verifyopt = [('', 'large', None,
_('verify that all largefiles in current revision exists')),
('', 'lfa', None,
_('verify largefiles in all revisions, not just current')),
('', 'lfc', None,
_('verify local largefile contents, not just existence'))]
entry[1].extend(verifyopt)
entry = extensions.wrapcommand(commands.table, 'debugstate',
overrides.overridedebugstate)
debugstateopt = [('', 'large', None, _('display largefiles dirstate'))]
entry[1].extend(debugstateopt)
outgoing = lambda orgfunc, *arg, **kwargs: orgfunc(*arg, **kwargs)
entry = extensions.wrapcommand(commands.table, 'outgoing', outgoing)
outgoingopt = [('', 'large', None, _('display outgoing largefiles'))]
entry[1].extend(outgoingopt)
cmdutil.outgoinghooks.add('largefiles', overrides.outgoinghook)
entry = extensions.wrapcommand(commands.table, 'summary',
overrides.overridesummary)
summaryopt = [('', 'large', None, _('display outgoing largefiles'))]
entry[1].extend(summaryopt)
cmdutil.summaryremotehooks.add('largefiles', overrides.summaryremotehook)
entry = extensions.wrapcommand(commands.table, 'pull',
overrides.overridepull)
pullopt = [('', 'all-largefiles', None,
_('download all pulled versions of largefiles (DEPRECATED)')),
('', 'lfrev', [],
_('download largefiles for these revisions'), _('REV'))]
entry[1].extend(pullopt)
revset.symbols['pulled'] = overrides.pulledrevsetsymbol
entry = extensions.wrapcommand(commands.table, 'clone',
overrides.overrideclone)
cloneopt = [('', 'all-largefiles', None,
_('download all versions of all largefiles'))]
entry[1].extend(cloneopt)
entry = extensions.wrapfunction(hg, 'clone', overrides.hgclone)
entry = extensions.wrapcommand(commands.table, 'cat',
overrides.overridecat)
entry = extensions.wrapfunction(merge, '_checkunknownfile',
overrides.overridecheckunknownfile)
entry = extensions.wrapfunction(merge, 'calculateupdates',
overrides.overridecalculateupdates)
entry = extensions.wrapfunction(merge, 'recordupdates',
overrides.mergerecordupdates)
entry = extensions.wrapfunction(merge, 'update',
overrides.mergeupdate)
entry = extensions.wrapfunction(filemerge, 'filemerge',
overrides.overridefilemerge)
entry = extensions.wrapfunction(cmdutil, 'copy',
overrides.overridecopy)
# Summary calls dirty on the subrepos
entry = extensions.wrapfunction(subrepo.hgsubrepo, 'dirty',
overrides.overridedirty)
entry = extensions.wrapfunction(cmdutil, 'revert',
overrides.overriderevert)
extensions.wrapfunction(archival, 'archive', overrides.overridearchive)
extensions.wrapfunction(subrepo.hgsubrepo, 'archive',
overrides.hgsubrepoarchive)
extensions.wrapfunction(cmdutil, 'bailifchanged',
overrides.overridebailifchanged)
extensions.wrapfunction(scmutil, 'marktouched',
overrides.scmutilmarktouched)
# create the new wireproto commands ...
wireproto.commands['putlfile'] = (proto.putlfile, 'sha')
wireproto.commands['getlfile'] = (proto.getlfile, 'sha')
wireproto.commands['statlfile'] = (proto.statlfile, 'sha')
# ... and wrap some existing ones
wireproto.commands['capabilities'] = (proto.capabilities, '')
wireproto.commands['heads'] = (proto.heads, '')
wireproto.commands['lheads'] = (wireproto.heads, '')
# make putlfile behave the same as push and {get,stat}lfile behave
# the same as pull w.r.t. permissions checks
hgweb_mod.perms['putlfile'] = 'push'
hgweb_mod.perms['getlfile'] = 'pull'
hgweb_mod.perms['statlfile'] = 'pull'
extensions.wrapfunction(webcommands, 'decodepath', overrides.decodepath)
# the hello wireproto command uses wireproto.capabilities, so it won't see
# our largefiles capability unless we replace the actual function as well.
proto.capabilitiesorig = wireproto.capabilities
wireproto.capabilities = proto.capabilities
# can't do this in reposetup because it needs to have happened before
# wirerepo.__init__ is called
proto.ssholdcallstream = sshpeer.sshpeer._callstream
proto.httpoldcallstream = httppeer.httppeer._callstream
sshpeer.sshpeer._callstream = proto.sshrepocallstream
httppeer.httppeer._callstream = proto.httprepocallstream
# override some extensions' stuff as well
for name, module in extensions.extensions():
if name == 'purge':
extensions.wrapcommand(getattr(module, 'cmdtable'), 'purge',
overrides.overridepurge)
if name == 'rebase':
extensions.wrapcommand(getattr(module, 'cmdtable'), 'rebase',
overrides.overriderebase)
extensions.wrapfunction(module, 'rebase',
overrides.overriderebase)
if name == 'transplant':
extensions.wrapcommand(getattr(module, 'cmdtable'), 'transplant',
overrides.overridetransplant)